Testing update on gyrotrons for electron cyclotron heating applications
Abstract
Tests were recently performed on CPI gyrotrons at frequencies of 117.5 GHz and 140 GHz. At 117.5 GHz, output power levels of 1.67 MW were obtained under short-pulse conditions and long-pulse tests with pulse durations of 1-10 s have been performed with power levels up to 700 kW. The 117.5 GHz gyrotron was shipped to General Atomics where further long-pulse testing to higher power levels will be carried out with the goal of demonstrating power levels up to 1.5 MW for 5-second pulses. At 140 GHz, a CPI gyrotron was recently tested up to 810 kW output power for 30-minute pulses at W7-X in Greifswald, Germany. Design details and the latest test results for the two gyrotrons are presented.
- Publication:
-
APS Division of Plasma Physics Meeting Abstracts
- Pub Date:
- October 2017
- Bibcode:
- 2017APS..DPPT11072F